Book/Report FZJ-2018-03557

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The system zirconium/cobalt/hydrogen: a transmission electron microscopy study

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1991
Forschungszentrum Jülich GmbH Zentralbibliothek, Verlag Jülich

Jülich : Forschungszentrum Jülich GmbH Zentralbibliothek, Verlag, Berichte des Forschungszentrums Jülich 2503, 51 p. ()

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Report No.: Juel-2503

Abstract: The compound ZrCo has been widely discussed as a convenient storage medium for hydrogen and its isotopes. Notably it is thought to be a suitable replacement for uranium since it has rather similar equilibrium pressures in the important temperature range fror 0 to 400°C. ZrCo has hone of the drawbacks of U such as pyrophoricity, radioactivity, limited availability and large volume expansion upon hydriding. In the present internal report we report the resuits of a TEM study on hydrided ZrCo. Very pure oxygen-free hydrides were produced bv exposing the samp les to acids at room temperature. The electron diffraction patterns are fully compatible with the old neutron data of Irodova et al. (6). Precipitation occurs mainly in platelike form on {100}. The hydride-matrix orientation relationship and the volurne expansion of the hydride was determined. A model for the atomic shifts required during the transformation is presented. Finally, a phase diagram for thepseudo-binary System ZrCo-H is derived.


Contributing Institute(s):
  1. Publikationen vor 2000 (PRE-2000)
Research Program(s):
  1. 899 - ohne Topic (POF3-899) (POF3-899)

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 Record created 2018-06-18, last modified 2021-01-29


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